175 citations · 252 across the 9 of their papers we have counts for
9 papers
Statistical ensemble of scale-free random graphs
Z. Burda, J. D. Correia, A. Krzywicki
A thorough discussion of the statistical ensemble of scale-free connected random tree graphs is presented. Methods borrowed from field theory are used to define the ensemble and to…
On the relation between Euclidean and Lorentzian 2D quantum gravity
J. Ambjorn, J. Correia, C. Kristjansen +1
Starting from 2D Euclidean quantum gravity, we show that one recovers 2D Lorentzian quantum gravity by removing all baby universes. Using a peeling procedure to decompose the discr…
On QCD_2 from supergravity and mass gaps in QCD
Joao Correia, Troels Harmark
As a test of the conjectured QCD/supergravity duality, we consider mass gaps in the supergravity construction of QCD_2. We find a mass gap in the dual field theory both when using…
Beta Function Constraints from Renormalization Groups Flows in Spin Systems
Joao D. Correia
Inspired by previous work on the constraints that duality imposes on beta functions of spin models, we propose a consistency condition between those functions and RG flows at diffe…
A Note on the Barrier in Liouville Theory
João D. Correia
The instability of Liouville theory coupled to matter fields is shown to persist even when the ``spikes'' which represent highly singular geometries are allowed to interact i…
The Spectral Dimension of Non-generic Branched Polymer Ensembles
Joao D. Correia, John F. Wheater
We show that the spectral dimension on non-generic branched polymer models with susceptibility exponent is given by . For those models with negative we find that t…
Three-State Complex Valued Spins Coupled to Binary Branched Polymers in Two-Dimensional Quantum Gravity
Joao D. Correia, John F. Wheater
A model of complex spins (corresponding to a non-minimal model in the language of CFT) coupled to the binary branched polymer sector of quantum gravity is considered. We show that…
Branched polymers, complex spins and the freezing transition
Joao D. Correia, Behrouz Mirza, John F. Wheater
We show that by coupling complex three-state systems to branched-polymer like ensembles we can obtain models with gamma-string different from one half. It is also possible to study…
A simple model of dimensional collapse
J. D. Correia, J. F. Wheater
We consider a simple model of d families of scalar field interacting with geometry in two dimensions. The geometry is locally flat and has only global degrees of freedom. When d<0…